Huna Model?

Okay, so I decided to try modelling a bit, so I decided to start with a Noble Huna since it seemed easy. Obviously, I'm not a pro modeller, and it's a work in progress, but I was wondering if I could get some feedback on it. I was also wondering if anyone knows how to keep the lines more straight so I can get the mouthpiece and bottom looking nice.Front:Side:

Honestly, this is my first Bionicle Model though, besides a simple Kanoka. It just took a quarter of a sphere, lots of extruding, loop cutting, and rearranging points, plus and underlaying image of the Huna to do that, and the front's mess.

Okay, updated with current progress. I messed around with the head a bit, straightened the lines I needed to, added another ridge on the mouthpiece, and added in the hole on top. I need to smooth everything, but I'm going to wait until I get a bit further.

So, it's already been modelled? Well, looking at a comparison, there are a few things from your model that could be fixed, like the line between the two layers of the main mask area (without the mouthpiece), actually blends into the mouthpiece, it doesn't go under it. I'll fix that later.Oh, and nuru, this is actually pretty easy if you have the mask and a picture in the background, like you did in the Kanoka Tutorial. That's actually what I used to figure out a lot of this. I've just been modelling based on the picture, and then fixing what doesn't look right on the actual mask.